A copy of the receipt in question and the China Tang restaurant. (Screenshot/AFP/Getty Images)

A group of Olympic bosses appear to have splashed out on a $70,000 lunch that included a $28,000 bottle of 1853 Hennessy cognac, photos and commentary circulating on the internet suggest.

The talk started when a receipt was posted on Reddit, the viral news website, with the headline: "My friend's a waiter and this is a receipt for an official lunch for 15 Olympic Bosses. Now we see where all the money's going..."